Reverse Crunch (lower abs) -- Great informative article on HOW and WHY to do reverse crunches. While doing this exercise, focus on your lower abs and do not use momentum while performing it.
Mental Toughness and the Law Of Attraction
I believe this move when done properly is so awesome because it does not cause much pain while doing it.
Build Bigger Biceps
Build bigger biceps with this one trick Fitnas Premium Challenge Pack: W1D2; Cardio-10mins KB swings, 30secs on, 30secs rest; Abs-3 rounds, rest 1min between round- 10 crunches, 10 cross body toe touches, 10 reverse crunches